A new study from the Cedars-Sinai Heart Institute reveals that stem cells taken from younger rats provided older rats with youthful vigor when injected into their hearts. After a month, the rats ran longer, and regrew hair faster.

Danske Bank A/S is telling corporate clients to think hard about what to do with their excess cash before Dec. 31, because Denmark’s biggest lender doesn’t want it in deposit accounts.After a world-record-setting half decade of negative interest rates, Denmark still has a few surprises up its sleeve that show how such a monetary regime works in practice. Though corporate clients need to pay to place their savings with the bank, Danske is struggling to deal with near-record amounts of deposits.